GB/T 24583.1-2019(\u82f1\u6587\u7248)
钒氮合金 钒含量的测定 硫酸亚铁铵滴定法
T/CSTM 01017-2023
YS/T 1318.1-2019
Methods for chemical analysis of tetrammine palladium(Ⅱ)sulphate-Part 1:Determination of palladium content-Dimethylglyoxime gravimetry
GB/T 6906-2006
Methods for analysis of water for boiler and for cooling - The determination of hydrazine
KS M ISO 3332-2017
Ammonium sulphate for industrial use — Determination of ammoniacal nitrogen content — Titrimetric method after distillation
KS M ISO 3332-2017(2022)
Ammonium sulphate for industrial use — Determination of ammoniacal nitrogen content — Titrimetric method after distillation
GB/T 505-1965
Determination of mercaptan-sulfur in engine fuels (ammonia-copper sulfate method)
GB/T 8570.2-2010
Determination of liquefied anhydrous ammonia - Part 2: Estimating of ammonia content
GB/T 34532-2017
Coking wastewater—Determination of ammonia nitrogen content—Formaldehyde method
YS/T 1318.2-2019
Methods for chemical analysis of tetrammine palladium (Ⅱ) sulphate-Part 2: Determination of magnesium,aluminium,chromium,manganese,iron,nickel,copper,zinc,ruthenium,rhodium,silver,tin,iridium,platinum,gold,lead and bismuth contents-Inductively coupled plasma mass spectrometry
GB/T 40970-2021
Determination of ammonia in cosmetics—Titration method
GB/T 41964-2022
Photography—Processing waste—Determination of ammoniacal nitrogen (microdiffusion method)
GB/T 5195.18-2018
Fluorspar—Determination of barium sulfate content—Gravimetric method
GB/T 3600-2000
Fertilizers--Determination of ammoniacal nitrogen content--Formaldehyde method
GB/T 4701.2-2009
Ferrotitanium - Determination of silicon content - The sulphuric acid dehydration gravimetric method
GB/T 8654.6-1988
Methods for chemical analysis of manganese metal--The diamine hydrochloride-iodo-metric method for the determination of selenium content
HG/T 6108-2022
GB/T 3595-2000
Fertilizers--Determination of ammoniacal nitrogen content--Titrimetric method after distillation
YB/T 6013.1-2022
GB/T 8570.2-1988
Liquefied anhydrous ammonia—Estimating of ammonia content